Thread-cutting temple for looms



Sept. 7 '1926.

4 1,599,037 w. D. BROWN THREAD CUTTING TEMPLE FOR LOOMS Filed Feb. 2, 1925 n v enTor. William Brown byMMkW Anya.

Patented Sept. 7, i 1926.

umrw sures PATENT orlce pastes w ws 9 sQHQe r a vnwwm ssm s to. 3mm ena or.K 21394 93.messe e mrsA @BZPQBAEIQN or MA NE .THIiEAP-Q THNG nse ts QR moms Application filed Eebruary 2, Serial No. 6,342.

This invention relates to thread cutting temples forlooms. S uch devices have long been employed in oonneetionwith automatic filling replenishing looms fo-r the purpose of severing closetc the selvag'e the filling ends left protruding therefrom afterreplenish .ment of fillingtakes place.

The present invention relates more partieularlyto that type ofthread cutting temple in, which the cutting 1 mechanism carried by the temple includes a fixedfcutterbllade and a rotary cutter blade actuated by the temple roll. 7

The object of the invention is to provide a simple and efficient form of construction of this latter type and one which Will sever the filling end with acl'ean'cut henevera filling endis' br'ought into its field of action.

The nature and object of the invention will 'appearmOreiuIly from the accompanyinQ; description and will be particularly pointed out inthe claims;

Thread cutting temples, including those of the rotary type, being well known and familiarto those skilled in the art, it is only necessarydieretoillustrate and 'describethose pants directly concerned with the presentin vention. *In'the v drawings, therefore. there is illustrated, apart froni th'e loom, device embodying a simple" and preferred form of the invention. 1

In the drawings Fi lis afright hand side elevation Off a temp e, partially broken eway ueh fLlSQlS employed 3 at the right hand side of the loom.

Fig. 2 is a detail of the" construction shown i n Fig. 1;, chiefly-inftransverse vertioal crtgss section, taken1onthe 1jine-2' 2 of -Fig. 3' is ia View inelevation' looking toward the in Fig. 1." I Fig l: is a detail in cross section takengn the line 4- ofjEig'. 2;

-F;ig. 5is a sidefel'evation of the fixed or stationary cutterjblade; v i

The: teinple illustrated is of thatty'pe employing two toothed rollsybut the presentin- QQ lil l lnit fiethe numb raiigementoftherolls. The shank 1 of the temple is mounted for rectilinear yielding movement in the usual manner in the temple stand 2. At its rearward end the shank 1 frontbf the construction shown merges into the header main body portion 3 ofthe temple. This head has laterally ektending therefrom toward the center of the loom the usu'aleap t and the usual pod 5. The cap and pod are spaced apart to prowide for the passage of the cloth therebetween. Secured to or formed upon a suit- [able portion'of the head or pod is the usual dep nding heel 6, WhlGl1 is struck by the lay ofth loom upon the b'eatup' to move the "entire temple'bodily forward against the action of its spring, wh ch upon rearward head.o'f'theteinplefat one end and supported at the other'end in the pod; The rear roll "8 is similarly mounted 01; the spindle 12.

This spindle is also threaded at lginto the head 3 of the temple, while" other end T is "supported at 14 in the pod.

The cutting mechanism is located in a transverse slot 15 formed n the head ofthe temple adja'centftheend ofthe roll 'Th'is slot opens at the rear of the temple an'd is closed atthef ront by the edge Wall 161. The

outer end of: the roll 8 projects through the 'head of the temple to the lateral Wall 17 of "this slot which therefore surrounds the for ward' 'endof the roller 8. i The temple roll at this end ispreferably provided with a metal ferrule 18ha ing .a central re-entrant polygonal socket 159.

The cutting mechanism comprises two thin metal, preferably steel, blades. one of these is a circular knife blade 20 presenting at its'peripherya continuous series of teeth 21 l iieh are preferably symmetrical'iwith "respeet-tothe radius'of'the blade and which 'alsoiare bevelled offat the iniiersurfaee. as shown in 4. This cireula-r toothed knife blade is eentrally 'apertured tofit over the spindle 12 and is proyidedlwith a? pol-y'gona lhub QS fitting" into the re-entr'ant socket 19 of the ferrule 18 on the end of the roll 8. It Will be seen, therefore, that the circular knife blade rotates with the temple roll and that its inner surface abuts against the fiat, circular, lateral wall 17 of the slot 15.

The stationary knife blade 2% is shown separatey in Fig. 5 and is preferably of a generally rectangular shape. It is provided with an aperture 25 fitting over the spindle 12 and is of such a size that one of its edges abuts the edge wall of the slot 15 so as to prevent rotation of the knife blade and hold it stationary. As shown, the forward edge 26 of the knife blade abuts the forward edge wall 16 of the slot 15. At its rear edge the stationary knife blade is provided with a notch 27, the lower edge of which, and preferably both the upper and lower edges of which, form cutting edges to cooperate with the teeth of the circular knife blade.

A filling end guiding groove is formed in the rear face of the head in alignment with the space between the cap and pod and forms a continuation of this space. The stationary knife blade 24 is mounted so that its notch 27 is in alignment with this filling end guiding groove.

Suitable means are provided which act yieldingly to maintain the stationary knife blade in close contact with the circular blade. For that purpose the head is provided with an annular socket 29 surrounding the spindle 12 and opening into the slot 15. A helical spring 80 is seated in this socket abutting the end of the spindle at one end and the surface of the stationary blade 2% at the other end, and thus acts to press the stationary blade snugly against the circular blade and insure a clean shearing action when the circular blade is rotated in either direction.

It will thus be seen that any filling end extending from the cloth and guided into the filling end guiding slot 28 is also guided into the notch 27 and consequently brought into the field of action of the cutting meehanism. Consequently as the roll is rotated by the reciprocating movement of the temple with respect to the cloth, the circular knife blade is simultaneously rotated and one or the other of the edges of its teeth act in cooperation with one or the other of the edges of the notch 27 of the stationary blade to sever the filling end.

The construction is one that is easily made and assembled in the temple. The cutting blades may have a loose fit and all that is necessary is that their juxtaposed surfaces shall be flat and smooth because the spring acts to press them into close contact and thus insure the cooperative shearing action under all conditions.

Having thus described the invention, what is claimed as new, and desired to be secured by Letters Patent. is:

1. A thread cutting temple for looms com prising a head having a laterally extending spaced cap and pod, a roll spindle threaded at one end in the head, a toothed roll journalled on the spindle, a transverse rearwardly opening slot in the head adjacent the roll end, the said slot presenting fixed vertical lateral opposed walls, a filling end guiding groove in the rear face of the head in alignment with the space between the cap and pod and forming a continuation thereof across the slot, a circular knife blade mounted in the slot on the spindle, keyed to the roll to rotate therewith and abutting the flat face of the lateral wall of the slot adjacent the roll end, a stationary knife blade mounted in the slot on the spindle, abutting the edge wall of the slot and thereby held against rotation and having in its rear edge a notch in alignment with the filling end guiding groove, the edge of this notch cooperating with the edges of the teeth of the circular knife blade when rotated to shear off filling ends guided into the notch, and means acting yieldingly to maintain the stationary knife blade in close contact with the circular blade and also acting to force the circular blade against the flat face of the lateral wall of the slot.

2. A thread cutting temple for looms comprising a head having a laterally extending spaced cap and pod, and a depending heel which is struck by the lay of the loom upon its bet-up, a roll spindle threaded at one end in the head, a toothed roll journalled on the spindle, a transverse rearwardly opening slot in the head adjacent the roll end, a filling end guiding groove in the rear face of the head in alignment with the space between the cap and pod and forming a continuation thereof across the slot, a circular knife blade presenting radially symmetrical peripheral teeth mounted in the slot on the spindle, keyed to the roll to rotate therewith and abutting the lateral wall of the slot, a stationary knife blade mounted in the slot on the spindle abutting the edge wall of the slot and thereby held against rotation and having in its rear edge a notch in alignment with the filling end guiding groove, both edges of this notch cooperating with the edges of the teeth of the circular knife blade when rotated in either direction to shear off filling ends guided into the notch, and means acting yieldingly to maintain the stationary blade in close contact with the circular blade.

In testimony whereof, I have signed my name to this specification.

WVILLIAM DALLAS BROlVN. 

